Deep cell battery for thrower

[Twystd1]

I have a Walmart marine car sized battery. I have the thrower and also the wobbler and have never came even close to draining the battery.

[klewan]

Group 27; battery you find in an ancient Cadillac. Good luck humping that into the boonies... I like the $500 solar battery charger option. But if the shooting site is accessible to a car, just jumper to the thrower off the car or truck...

[CGT80]

^^^ Except that deep cycle batteries should not be used for starting engines. They are not designed for the quick very heavy draw of a starter. This would not apply if they are deep cycle/start batteries.

Deep cycle batteries are designed for a lower constant longer time draw such as a trolling motor or lights etc in a travel trailer/motorhome.

The best ones to get would be the golf cart batteries. That is what we use in the trailers/motorhomes/live aboard boats etc.

I double checked those costco batteries today. They are a marine deep cycle. They are listed at 700 and 500 amps. One ratings is cold cranking amps and the other is marine cranking amps. They are 85 amp hour batteries. It appears they are made for starting boats and RV's. They may not be ideal for an auto battery but they seem to fit my needs pretty well. I have seen auto batteries with higher CCA ratings. My 88 K5 Blazer 350 tbi is easy to crank over. The 406 sbc (in my pickup) at 10.2:1 CR with 12 degrees of initial advance would sometimes work the stock starter a bit. I usually run a gear reduction starter and it has no problem on these batteries.

[Divernhunter]

^^^ OK So the costco are the start/deepcycle dual purpose kind. They work for both applications. That is what I used in my boat.
A straight deep cycle battery is not a good choice for a start battery. The dual purpose kind works fine and was designed to starting and deep cycle use.